Once a year the managers of the Hennessy Cornerstone Mid Cap 30 Fund rebalance their portfolio. They use a formula to select 30 stocks, equal-weighting each at 3.3 per cent of the fund. Then they let ...

Atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

Time may move forward and backward, according to new quantum physics research. Equations remain unchanged when time is ...

A new study reveals that the body’s internal clock plays a key role in eating behavior, influencing when and how much adolescents eat.

W e’ve all experienced the shift to and from daylight saving time—whether we like it or not. In decades past, we’d wake up to clocks running an hour behind or ahead, and wed ...